Alert archive / Florida / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 20, NWS Melbourne, FL

June 1, 2002Osceola County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Jun 1, 2002, 7:09 PM EDT for Osceola County, Florida. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 1, 2002, 7:09 PM EDT (23:09 UTC)
Expired
Jun 1, 2002, 7:45 PM EDT
In force
36 min
Issued by
NWS Melbourne, FL
Area
Whole counties

County Osceola County, FL

The radar

The Melbourne radar (KMLB), 49 km from the middle of the area, began a volume at 23:13 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 11.2 hours before the alert went out and 78 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Cape Canaveral, FL at 12:00Z on 2002-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1286 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cape Canaveral, FL at 12:00Z on 2002-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1286 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
687 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
13 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

516 
WUUS52 KMLB 012309 CCA
SVRMLB
FLC097-012345-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
655 PM EDT SAT JUN 1 2002

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL OSCEOLA COUNTY
  IN EAST CENTRAL FLORIDA

* UNTIL 745 PM EDT.

* AT 647 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER BUENA VENTURA LAKES...OR ABOUT 4 MILES
  SOUTH OF ORLANDO INTERNATIONAL AIRPORT...MOVING SOUTH AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
  NEAR EAST LAKE TOHO AND NARCOOSSEE AT 710 PM.
  NEAR SAINT CLOUD AT 720 PM.

THIS STORM HAS HAD A HISTORY OF PRODUCING HAIL TO ONE INCH DIAMETER 
AND WINDS GUSTING OVER 60 MPH. IF YOU ARE IN ITS PATH...PUT YOUR CAR 
IN A GARAGE AND MOVE TO A STURDY BUILDING AWAY FROM WINDOWS.

$$

LAT...LON 2809 8110 2806 8133 2834 8140 2834 8118

MJG

The office that day

Everything else NWS Melbourne, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 1, 5:46 PM EDTSevere Thunderstorm WarningMLBSeminole29 min
Jun 1, 6:12 PM EDTSevere Thunderstorm WarningMLBOrange33 min
Jun 1, 6:43 PM EDTSevere Thunderstorm WarningMLBOrange32 min
Jun 1, 6:56 PM EDTSevere Thunderstorm WarningMLBOsceola49 min

Nearby

Severe Thunderstorm Warnings in Florida, 2002Every severe thunderstorm warning in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.